Does anyone have a set of flowbench figures for
the Factory 292 1.72/1.5 valve heads with a factory cam? Found information with a cam with .600 inch lift but this isn't a street cam.
Want to compare stock vs Pocket ported factory head factory valves factory cam to see what advantages pocket porting and gasket matching will add to a street motor.

I know your post is old, but I just joined and was looking around and no replies.

Flow is usually measured at 28" Hg pressure drop and just as a function of valve lift, nothing to do with what cam is in it.
Info I have is meager (looking for more myself) but I have, from Leo Santucci's excellent book on pg 86
at .600 lift:
Intake 169cfm
Exnaust 122cfm

Usually, lacking any other info, I assume flow goes as the square root of the lift. And, I usually look for and quote .500 lift as a standard. So with my approximation, the info above changes to approx:
Intake 154cfm
Exhaust 111cfm

A past article of Hot Rod listed, at .500:
Intake 159cfm
Exhaust 117cfm

Pretty close!

Those flows are not great, but about the same as a stock 351 Windsor Ford and capable of over 1hp per inch with same.

Late post but hope this helps, shoot back if you get it!